A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
A handbbok on Weed Control in Rice.pdf
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Lowland rice weeds / POACEAE (grass family)<br />
<strong>Weed</strong> name: Ech<strong>in</strong>ochloa glabrescens<br />
Munro ex Hook.f.<br />
Syn<strong>on</strong>yms: N<strong>on</strong>e<br />
Local names:<br />
Country Comm<strong>on</strong> name<br />
Japan <strong>in</strong>ubie<br />
Philipp<strong>in</strong>es bayakibok, daua-daua<br />
(Tagalog)<br />
Life cycle: An annual grass that<br />
grows 0.5-1.0 m tall. Propagates by<br />
seeds.<br />
Habitat: Adapted to wet soils.<br />
Distributi<strong>on</strong> extends from the Indian<br />
subc<strong>on</strong>t<strong>in</strong>ent through ma<strong>in</strong>land<br />
Southeast Asia and Ch<strong>in</strong>a to Korea,<br />
southern Japan, and the Philipp<strong>in</strong>es<br />
(Michael 1983).<br />
<strong>Weed</strong>y nature: Ecologically similar<br />
to rice.<br />
Agricultural c<strong>on</strong>cern: Very competi-<br />
tive with rice. When E. glabrescens<br />
seedl<strong>in</strong>gs were transplanted with rice,<br />
yield losses ranged from 7% when 5%<br />
of the rice hills were <strong>in</strong>fested to 87%<br />
when 50% of the rice hills were<br />
<strong>in</strong>fested (IRRI 1987).<br />
18 <strong>Weed</strong> c<strong>on</strong>trol handbook<br />
Seedl<strong>in</strong>g<br />
Seed, magnified<br />
Mature plant<br />
Inflorescence
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